Finding the Fourth Proportional to 153,281,848.20, 211,497,373.68 and 88,079,155.08
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Solution
The fourth proportional to 153,281,848.20, 211,497,373.68 and 88,079,155.08 is: 121,531,089.26
Step by Step Solution
- Step 1: Write the proportion equation
153,281,848.20 : 211,497,373.68 = 88,079,155.08 : x - Step 2: Convert to fraction form
153,281,848.20/211,497,373.68 = 88,079,155.08/x - Step 3: Cross multiply
153,281,848.20x = 211,497,373.68 × 88,079,155.08 - Step 4: Simplify right side
153,281,848.20x = 18,628,509,975,373,432 - Step 5: Solve for x
x = 18,628,509,975,373,432/153,281,848.20 - Step 6: Final answer
x = 121,531,089.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.